Nut-lock.



W. L. HOLLOWAY.

NUT LOCK. I APPLICATION FILED NOV.20,1908.

926,867, atented July 6,1909.

Wu-"mm J lllll lllllllll) STATES WELLIS L. HOLLOWAY, Ul! .BARNESVIILLE. OHIO.

rib. eeeeev.

Specification of Letters Patent.

Ttatented .riu e, 1909.

Application filed November 20, 1908. Serial No. 463,657.

To all whom it may concern:

Be it known that I, Vl/iLLJs L. llOLLQWAY, a citizen of the United States, residing at Barncsville, in the county of Belmont and State ol Ohio, have invented a new and usel'ul hiutdioclt, of which the following; is a spe ilicatiim.

"lhis invention relates to il'nprovements in nut locks end particularly to the type wherein the nut is locked to the bolt with a key.

.lft has for one of its objects to provide a device of that kind which canbe applied to any form of holt without altering the latter.

l rnother object is to provide it construe tion which can he readily looked and unlocked.

it lurthor ohioct is to provide a locking member which will tend to increase the lriction hctween its surface and that of the holt with any tendency ol' tho nut to turn in omrdirmwtion.

rt further ohjcrt is to provide a construc tion in which the locking member Will hear tangentially on the threads of the bolt and he at all times romhinod with the nut.

A further ohjoct is-to provide a locking incmher which will operate when moved in one direction positively to lock the nut at any traction of a turn.

With those and other ohjects in View, as will more lolly hereinafter appear, the pros out invention consists in certain novel details ol construction and arrangement of ports, hcrcimd'tcr fully described, illustrated in the accomiianyiup: drawings and more particularly pointed out in the appended claim, it hiring understood that various changes in the l'orm, proportion, size and minor details of the device may he made without departing from the spirit or sacri tiring any o l the advantages ol' the invention.

in the arr-ompsnyingr drawings forming a part oilhis specification:---l igure l is an end elevation oi a nut provided with my improved inching meinhor, and showing the latter outol' locking position. Fig. 2 is a similar view showing a section through a holt with the locking member moved into locking position with the threads of the latter. l io til is a side elevation ol a nut show ing the formation ol the recess and manner oi s curing the locking meinher therein.

uniler mmierals oi reference are 8111- l lo designate rorrospi'drilling ports The nut l. and bolt 2 may he oi any well known-type} and in the lower lace oi' the former is fashioned a transvrn'sc which is disposed between the outer 'l'aco ol' the nut and the wall of the threaded holt opening. CoinInunication between the ro cess and the holt opening is cll'ectwl hy means oi a seat t extending from the intern'iediateportion of the recess into the holt opening.

The form of locking member employed is shown to consist of a single piece of metal, substantially rectangular in cross section. The length of the locking member is con-- siderahly greater than that oil the recess 3, so that when inserted in. the latter, as shown in Figs. 1 and 2, its opposite ends will projcct heyond the Wrench faces of the not. The width of the locking member is a trillo less than the depth of the recess .3, so that when inserted in the latter it may he loosely secured therein by u psetting or clam-ping tho metal at the edge 0i one oi" the walls-of the recess inwardly so as to form an overhang or lip 5, which will slightly hour on the outer face or edge of the loclcing momher hut not with suflicient force to prevent longitiulinal movement 01' the same in the recess.

The locking member is provided with a lateral lug or dog '7 which projects into and is of less width than the seat l, in order to )crinit either end ol' the locking; 'momhvr to he moved inwardly so as to permit one end to he substantially llush with the wrench faces of the nut. The do 7 is on its outer side, provided with a beveled surface 8 haw ing transverso serrations or teeth 9, the limotion of which will presently appear; The length of the highest point in the inclined surface 8 is such that when it reaches the middle of t e sent 4, as shown in l 2, it will project peyoud the edge ol' the threaded wall of tho holt opening. .lly rr-l'rrriiui now to l igs. fl and it, it will he seen that the so"- rations or loclh are so formed on the inclined face 8, that a tendency oi, the nut to turn .in a dir ,ion lo disengage itself from the holt, will result in the teeth S) honouring deeper emheddcd into the threads oi the holl From the foregoing it is oh'vious that the present ()(UlSld'llCtlUll will operate positively to l oh the nut at the sinnl est irnction of a turn of the latter on tho holt 2. it is held that this is an dvantage over similar dc- "vices provided with tangential keys, where-- in the out must he turned slightly to the hit recess 2% contact not only tends to injure the dog, but

before the key can be erated to lock. It i to the recess, being arranged to engage the is to be further observe when the parts are 1 base of the wedge-shaped dog. By this conin locked position, as shown in Fig. 2, they struction, the defects hereinbefore ointed may be readily unlocked by tapping that out as existing in the devices of the c ass deend of the key projecting beyond the face of scribed, are obviated.

Thus it Will What is claimed is:

A device of the class described comprising a nut provided on its inner face With a recess extending transversely across the nut, and With a seat disposed at right. angles to the recess and forming a communication be: tween the recess and the bolt opening of the nut; a locking member of less height than the depth of the recess, and longer than said recess, arranged to be seated in said recess,

the nut. be seen that the in- I dentations produced by the serrations 9 on y the threads of the bolt will have no bad effects upon the latter, such as would render it unfit for 1" urther use. The advantage of providing the nut With a key at all times combined therewith is to avoid loss of the key and to maintain the parts in position for instant use.

In devices of the 'class herein described, when the locking member is moved from an operative into an inoperative position, such movement is apt to take place somewhat i violently, the bolt not infrequently holding i the locking member under repeated blows, i the separation of the locking member and the bolt at length being efl'ected by relatively strong blows, forcing the dog violently i into contact with the Wall of the seat which i ranged to slide in the seat and serrated on one edge adjacent the bolt opening of the nut, the plane of the base of the wedge of the dog being disposed at right angles to the recess and being engaged by a Wall of the seat when the locking member is moved into inoperative position, one of the walls of the recess being upset to retain the locking l member against disconnection from the nut. when the dog moves from an operative into l In testimony that I claim the foregoing as an inoperative osition, the same is likely to I my own, I have hereto allixed my signature Ibecpme wedgec, so that, only with great difl in the presence of two witnesses.

'ieu ty can it a ain )e moved to 0 erativc I Y ,r position. In tli e nut lock of my ini ention, l HJLIS L 110ml) the base 10 of the wedgp-shaped'dqg isdis- I posed at right angles to the transverse recess 3, a wall of the seat, disposed at right angles itnesses: W. O. (Inarrnr, Dnnonan- WiLLiAMs.

and provided with a wedge-shaped dog ar-' Iii") 

